Patent Assignment
Reel/Frame 010465/0164
Assignment of Assignor's Interest
Recorded: 1999-12-15
Pages: 3
Assignor
ZIEROLF, JOSEPH A.
Executed: 1999-11-29
Assignee
IN-DEPTH, INC.
103 ANGELLE CIRCLE, HOUMA, LOUISIANA, 70360
Covered Property
(1)
Method and Apparatus for Determining Position in a Pipe
Patent:
6,333,699 →
Application:
09/286,650 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Sep 19, 2000
From: ZIEROLF, JOSEPH A.
To: MARATHON OIL COMPANY
Reel/Frame 011183/0693 →
Assignment of Assignor's Interest
Sep 7, 2007
From: IN-DEPTH, INC.
To: MARATHON OIL COMPANY
Reel/Frame 019795/0305 →
Assignment of Assignor's Interest
May 3, 2017
From: MARATHON OIL COMPANY
To: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Reel/Frame 042222/0080 →